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imbatchreport: Batch report input module

Module Name: imbatchreport
Authors: Jean-Philippe Hilaire <jean-philippe.hilaire@pmu.fr> & Philippe Duveau <philippe.duveau@free.fr>

Purpose

This module allows rsyslog to manage batch reports.

Batch are programs launched successively to process a large amount of information. These programs are organized in stages with passing conditions. The batch ends with a global execution summary. Each Batch produces a single result file usually named with the name of the batch and its date of execution.

Those files have sense only when they are complete in one log. When the file is collected it becomes useless and, as a statefile, should be deleted or renamed.

This module handle those characterics :

  • reads the complete file,
  • extracts the structured data from the file (see managing structured data),
  • transmit the message to ouput module(s),
  • action is applied to the file to flag it as treated. Two diffeent actions can be applied: delete or rename the file.

If the file is too large to be handled in the message size defined by rsyslog, the file is renamed as a “rejected file”. See $maxMessageSize

Managing structured data

As part of the batch summary, the structure datas can be provided in the batch report file as the last part of the file.

The last non-space char has to be a closing brace ‘]’ then all chars between this char up to the closest opening brace ‘[‘ are computed as structured datas.

All the structured data has to be contained in the last 150 chars of the file.

In general, structured data should contain the bacth name (program) and the start timestamp. Those two values can be extract to fill rsyslog message attributes.

Compile

To successfully compile imbatchreport module.

./configure –enable-imbatchreport …

Configuration Parameters

Action Parameters

Reports

type mandatory format default
string yes glob definition  

Glob definition used to identify reports to manage.

Tag

type mandatory format default
string yes   none

The tag to be assigned to messages read from this file. If you would like to see the colon after the tag, you need to include it when you assign a tag value, like so: tag="myTagValue:".

Facility

type mandatory format default
string no facility|number local0

The syslog facility to be assigned to messages read from this file. Can be specified in textual form (e.g. local0, local1, …) or as numbers (e.g. 16 for local0). Textual form is suggested.

Severity

type mandatory format default
string no severity|number notice

The syslog severity to be assigned to lines read. Can be specified in textual form (e.g. info, warning, …) or as numbers (e.g. 6 for info). Textual form is suggested.

DeduplicateSpaces

type mandatory format default
binary no   on

The parameter modify the way consecutive spaces like chars are managed. When it is setted to “on”, consecutive spaces like chars are reduced to a single one and trailing space like chars are supressed.

Delete

type mandatory format default
string no <regex> <reject>  

This parameter informs the module to delete the report to flag it as treated. If the file is too large (or failed to be removed) it is renamed using the <regex> to identify part of the file name that has to be replaced it by <reject>. See Examples

Rename

type mandatory format default
string no <regex> <sent> <reject>  

This parameter informs the module to rename the report to flag it as treated. The file is renamed using the <regex> to identify part of the file name that has to be replaced it:

  • by <rename> if the file was succesfully treated,
  • by <reject> if the file is too large to be sent.

See #Examples

Programkey

type mandatory format default
string no    

The attribute in structured data which contains the rsyslog APPNAME. This attribute has to be a String between double quotes (“).

Timestampkey

type mandatory format default
string no    

The attribute in structured data which contains the rsyslog TIMESTAMP. This attribute has to be a Number (Unix TimeStamp).

Examples

The example show the delete action. All files corresponding to “/test/*.ok” will be treated as batch reports and will be deleted on success or renamed from <file>.ok to <file>.rejected in other cases.

module(load="imbatchreport")
input(type="imbatchreport" reports="/test/\*.ok"
      ruleset="myruleset" tag="batch"
      delete=".ok$ .rejected"
      programkey="SHELL" timestampkey="START"
   )

The example show the rename action. All files corresponding to “/test/*.ok” will be treated as batch reports and will be renamed from <file>.ok to <file>.sent on success or renamed from <file>.ok to <file>.rejected in other cases.

module(load="imbatchreport")
input(type="imbatchreport" reports="/test/\*.ok"
      ruleset="myruleset" tag="batch"
      rename=".ok$ .sent .rejected"
      programkey="SHELL" timestampkey="START"
   )

See also

Help with configuring/using Rsyslog:

  • Mailing list - best route for general questions
  • GitHub: rsyslog source project - detailed questions, reporting issues that are believed to be bugs with Rsyslog
  • Stack Exchange (View, Ask) - experimental support from rsyslog community

See also

Contributing to Rsyslog:

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